Apparatus for melt spinning multifilament yarns

US5593705A · kind A · utility

Assignee

• AKZO NOBEL N.V. · NL

Inventors

• Diederich Schilo · Klingenberg, DE
• Wolfgang Peschke · Obernburg, DE

Key dates

• Filing date: Mar 4, 1994
• Grant date: Jan 14, 1997
• Expiry date: Mar 4, 2014

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01D5/092
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

An apparatus and use thereof for melt spinning multifilament yarns from fiber-forming polymers at windup speeds of at least 2000 m/min is disclosed. The apparatus has a spinnerette, a cooling element for solidifying the filaments, a convergence element for the filaments and a wind-up element and having, at least between the spinnerette and the convergence element, an essentially vertical spinline. The cooling element is a porous tube which is open in the spinning direction and concentric relative to the spinline. The porous tube has disposed downstream of it a further, non-porous tube. It is particularly advantageous for the porous tube to have a length from 10 to 800 mm. It is particularly advantageous for the further, non-porous tube disposed downstream of the porous tube to have a length from 200 to 800 mm.